Pipe-repair clamp



i@ y wm, l www? S. M. KASE PIPE REPAR CLAMP Fil-sd Aug. 13, 1221 @dna/e /V Kawa,

Patented Mar. i8, i924.

SAMUEL III. KASS, OIF PHILADELPHIA, PENNSYLVANIA.

' PIPE-REPAIR CLAllrIP.

Application led August 13, 1921.

To all 'whomz't may concern:

Be it known that l, SAMUEL M. Kass, a citizen of the United States, residing at Philadelphia, in the county ot Philadelphia and State ot Pennsylvania, have invented a certain new and useful Pipe-Repair Clamp, ot which the 'following is a specification.

My invention relates to clamps ot the kind that are used to repair leaks in metal pipe.

The main purpose ot my invention is to provide a clamp largely of sheet metal construction having longitudinally extending interiitting parts adapted tor quick, easy and eltective assemblage and use.

A iturther purpose is to provide for easy assemblage with clincher engagement at both edges between sheet metal intertting clamp parts.

Further purposes will appear in the specifica-tion and in the claims.

l' have illustrated my invention by but one iorm, selecting a iorm which has proved to be practical, efficient and very inexpensive and which at the same time well illustrates the principles ci my invention.

Figure l is transverse section upon line Vl--l ol Figure 2, showing pipe to which my invention is applied.

Figure 2 is a section upon line 2-2 of Figure l.

Figure 3 is a side elevation ot ythe structure seen in Figures l and 2.

.ln the drawings similar numerals indicate like parts.

ln the repair of breaks in pipe, clamps have long been placed about the break to clamp packing over it. My invention is intended to provide a clamp lighter and less expensive than those now available, yet one equally strong and equally easy to assemble. l do this by the use oit sheet metal. However, my invention does no reside in the substitution of sheet metal tor other metal, but in the construction by which sheet metal is rendered economical and effective.

in the-illustration, the pipe 5 is shown as having a break at 6, which is to be repaired by clamping a strip of packing 7 over the break.

l use a clamp made up ot two main parts 8 and 9, preferably ci? equal length and together completely encircling the pipe and iulieiiittiiig by clincherjoints at opposite sides. These clincher joints are formed by reversely turning the metal of the member 8 at l0 to provide spaces l1 within which Serial No. 491,961.

the reversely turned edges l2 ot the member 9 fit, at the same time that the ends 10 lit within spaces 13 formed by the reverse turning of the edges l2.

The two clamp members may divide the circumference in any proportion desired which will permit the clincher joints to function properly and will not bring a point of division over the packing which is being applied. it is quite desirable to locate the middle ot' the member 8 over the packing in order that there may be as much pressure brought upon the packing as possible and that it may be uniformly distributed over the surface of the packing.

l show the two clamp members as tightened by a screw and nut const "notion, in which the thumb screwl lipasses through a nut l5 within the middle et the interior oit the member 9. The nut member l5 may Vvary in shape. Preferably, it may have the same length, approximately, Ls the clamp member 9, so as to distribute its pressure uniformly along that member and it may be tapered to reduce weight and 'facilitate assemblage.

After the parts are in position, but before the screw is tightened, greater strength may be given the joints, when desired, by closing them laterally, by pressure or impact.

l recognize that my inventiim may be. applied in various modifications and not confined to the exact orm shown. l purpose covering in my claims all such modied forms as come within the reasonable spirit and scope ot my invention.

Haring thus described my invention, what l claim as new and desire to secure by Letters Patent is:

l. ln a pipe repair clamp, two clamp members united by clincher joints and together surrounding the pipe, in combination with a screw and nut tor tightening the clamp, the nut being located inside ot one of the members.

2. ln a pipe repair clamp, two clamp members united by clincher joints and together surrounding the pipe, in combination with a screw and nut for tightening the clamp, the nut being located inside of one of the members and extended longitudinally ot the pipe to distribute the pressure ot the nut longitudinally along one clamp member.

SAMUEL M. KASS. 

